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sdrangel/plugins/samplesource/remotetcpinput/remotetcpinputtcphandler.cpp

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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2022-2024 Jon Beniston, M7RCE <jon@beniston.com> //
// Copyright (C) 2022 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
// Copyright (C) 2022 Jiří Pinkava <jiri.pinkava@rossum.ai> //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation as version 3 of the License, or //
// (at your option) any later version. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#include <QUdpSocket>
#include <QDebug>
#include "dsp/dspcommands.h"
#include "dsp/dspengine.h"
#include "device/deviceapi.h"
#include "remotetcpinputtcphandler.h"
#include "remotetcpinput.h"
#include "../../channelrx/remotetcpsink/remotetcpprotocol.h"
MESSAGE_CLASS_DEFINITION(RemoteTCPInputTCPHandler::MsgReportRemoteDevice, Message)
MESSAGE_CLASS_DEFINITION(RemoteTCPInputTCPHandler::MsgReportConnection, Message)
MESSAGE_CLASS_DEFINITION(RemoteTCPInputTCPHandler::MsgConfigureTcpHandler, Message)
RemoteTCPInputTCPHandler::RemoteTCPInputTCPHandler(SampleSinkFifo *sampleFifo, DeviceAPI *deviceAPI) :
m_deviceAPI(deviceAPI),
m_running(false),
m_dataSocket(nullptr),
m_tcpBuf(nullptr),
m_sampleFifo(sampleFifo),
m_messageQueueToGUI(0),
m_fillBuffer(true),
m_timer(this),
m_reconnectTimer(this),
m_sdra(false),
m_converterBuffer(nullptr),
m_converterBufferNbSamples(0),
m_settings()
{
m_sampleFifo->setSize(5000000); // Start with large FIFO, to avoid having to resize
m_tcpBuf = new char[m_sampleFifo->size()*2*4];
m_timer.setInterval(50); // Previously 125, but this results in an obviously slow spectrum refresh rate
connect(&m_reconnectTimer, SIGNAL(timeout()), this, SLOT(reconnect()));
m_reconnectTimer.setSingleShot(true);
}
RemoteTCPInputTCPHandler::~RemoteTCPInputTCPHandler()
{
delete[] m_tcpBuf;
if (m_converterBuffer) {
delete[] m_converterBuffer;
}
cleanup();
}
void RemoteTCPInputTCPHandler::reset()
{
QMutexLocker mutexLocker(&m_mutex);
m_inputMessageQueue.clear();
}
// start() is called from DSPDeviceSourceEngine thread
// QTcpSockets need to be created on same thread they are used from, so only create it in started()
void RemoteTCPInputTCPHandler::start()
{
QMutexLocker mutexLocker(&m_mutex);
qDebug("RemoteTCPInputTCPHandler::start");
if (m_running) {
return;
}
connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()));
connect(thread(), SIGNAL(started()), this, SLOT(started()));
connect(thread(), SIGNAL(finished()), this, SLOT(finished()));
m_running = true;
}
void RemoteTCPInputTCPHandler::stop()
{
QMutexLocker mutexLocker(&m_mutex);
qDebug("RemoteTCPInputTCPHandler::stop");
disconnect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()));
}
void RemoteTCPInputTCPHandler::started()
{
QMutexLocker mutexLocker(&m_mutex);
// Don't connectToHost until we get settings
connect(&m_timer, SIGNAL(timeout()), this, SLOT(processData()));
m_timer.start();
disconnect(thread(), SIGNAL(started()), this, SLOT(started()));
}
void RemoteTCPInputTCPHandler::finished()
{
QMutexLocker mutexLocker(&m_mutex);
m_timer.stop();
disconnect(&m_timer, SIGNAL(timeout()), this, SLOT(processData()));
disconnectFromHost();
disconnect(thread(), SIGNAL(finished()), this, SLOT(finished()));
m_running = false;
}
void RemoteTCPInputTCPHandler::connectToHost(const QString& address, quint16 port)
{
qDebug("RemoteTCPInputTCPHandler::connectToHost: connect to %s:%d", address.toStdString().c_str(), port);
m_dataSocket = new QTcpSocket(this);
m_fillBuffer = true;
m_readMetaData = false;
connect(m_dataSocket, SIGNAL(readyRead()), this, SLOT(dataReadyRead()));
connect(m_dataSocket, SIGNAL(connected()), this, SLOT(connected()));
connect(m_dataSocket, SIGNAL(disconnected()), this, SLOT(disconnected()));
#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
connect(m_dataSocket, QOverload<QAbstractSocket::SocketError>::of(&QAbstractSocket::error), this, &RemoteTCPInputTCPHandler::errorOccurred);
#else
connect(m_dataSocket, &QAbstractSocket::errorOccurred, this, &RemoteTCPInputTCPHandler::errorOccurred);
#endif
m_dataSocket->connectToHost(address, port);
}
void RemoteTCPInputTCPHandler::disconnectFromHost()
{
if (m_dataSocket)
{
qDebug() << "RemoteTCPInputTCPHandler::disconnectFromHost";
disconnect(m_dataSocket, SIGNAL(readyRead()), this, SLOT(dataReadyRead()));
disconnect(m_dataSocket, SIGNAL(connected()), this, SLOT(connected()));
disconnect(m_dataSocket, SIGNAL(disconnected()), this, SLOT(disconnected()));
#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
disconnect(m_dataSocket, QOverload<QAbstractSocket::SocketError>::of(&QAbstractSocket::error), this, &RemoteTCPInputTCPHandler::errorOccurred);
#else
disconnect(m_dataSocket, &QAbstractSocket::errorOccurred, this, &RemoteTCPInputTCPHandler::errorOccurred);
#endif
m_dataSocket->disconnectFromHost();
cleanup();
}
}
void RemoteTCPInputTCPHandler::cleanup()
{
if (m_dataSocket)
{
m_dataSocket->deleteLater();
m_dataSocket = nullptr;
}
}
// Clear input buffer when settings change that invalidate the data in it
// E.g. sample rate or bit depth
void RemoteTCPInputTCPHandler::clearBuffer()
{
if (m_dataSocket && m_readMetaData)
{
if (m_spyServer)
{
// Can't just flush buffer, otherwise we'll lose header sync
// Read and throw away any available data
processSpyServerData(m_dataSocket->bytesAvailable(), true);
m_fillBuffer = true;
}
else
{
m_dataSocket->flush();
m_dataSocket->readAll();
m_fillBuffer = true;
}
}
}
void RemoteTCPInputTCPHandler::setSampleRate(int sampleRate)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setSampleRate;
RemoteTCPProtocol::encodeUInt32(&request[1], sampleRate);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setCenterFrequency(quint64 frequency)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setCenterFrequency;
RemoteTCPProtocol::encodeUInt32(&request[1], frequency);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setTunerAGC(bool agc)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setTunerGainMode;
RemoteTCPProtocol::encodeUInt32(&request[1], agc);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setTunerGain(int gain)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setTunerGain;
RemoteTCPProtocol::encodeUInt32(&request[1], gain);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setGainByIndex(int index)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setGainByIndex;
RemoteTCPProtocol::encodeUInt32(&request[1], index);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setFreqCorrection(int correction)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setFrequencyCorrection;
RemoteTCPProtocol::encodeUInt32(&request[1], correction);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setIFGain(quint16 stage, quint16 gain)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setTunerIFGain;
RemoteTCPProtocol::encodeUInt32(&request[1], (stage << 16) | gain);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setAGC(bool agc)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setAGCMode;
RemoteTCPProtocol::encodeUInt32(&request[1], agc);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setDirectSampling(bool enabled)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setDirectSampling;
RemoteTCPProtocol::encodeUInt32(&request[1], enabled ? 3 : 0);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setDCOffsetRemoval(bool enabled)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setDCOffsetRemoval;
RemoteTCPProtocol::encodeUInt32(&request[1], enabled);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setIQCorrection(bool enabled)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setIQCorrection;
RemoteTCPProtocol::encodeUInt32(&request[1], enabled);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setBiasTee(bool enabled)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setBiasTee;
RemoteTCPProtocol::encodeUInt32(&request[1], enabled);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setBandwidth(int bandwidth)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setTunerBandwidth;
RemoteTCPProtocol::encodeUInt32(&request[1], bandwidth);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setDecimation(int dec)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setDecimation;
RemoteTCPProtocol::encodeUInt32(&request[1], dec);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setChannelSampleRate(int sampleRate)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setChannelSampleRate;
RemoteTCPProtocol::encodeUInt32(&request[1], sampleRate);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setChannelFreqOffset(int offset)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setChannelFreqOffset;
RemoteTCPProtocol::encodeUInt32(&request[1], offset);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setChannelGain(int gain)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setChannelGain;
RemoteTCPProtocol::encodeUInt32(&request[1], gain);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::setSampleBitDepth(int sampleBits)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[5];
request[0] = RemoteTCPProtocol::setSampleBitDepth;
RemoteTCPProtocol::encodeUInt32(&request[1], sampleBits);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::spyServerConnect()
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[8+4+9];
SpyServerProtocol::encodeUInt32(&request[0], 0);
SpyServerProtocol::encodeUInt32(&request[4], 4+9);
SpyServerProtocol::encodeUInt32(&request[8], SpyServerProtocol::ProtocolID);
memcpy(&request[8+4], "SDRangel", 9);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::spyServerSet(int setting, int value)
{
QMutexLocker mutexLocker(&m_mutex);
quint8 request[8+8];
SpyServerProtocol::encodeUInt32(&request[0], 2);
SpyServerProtocol::encodeUInt32(&request[4], 8);
SpyServerProtocol::encodeUInt32(&request[8], setting);
SpyServerProtocol::encodeUInt32(&request[12], value);
if (m_dataSocket) {
m_dataSocket->write((char*)request, sizeof(request));
}
}
void RemoteTCPInputTCPHandler::spyServerSetIQFormat(int sampleBits)
{
quint32 format;
if (sampleBits == 8) {
format = 1;
} else if (sampleBits == 16) {
format = 2;
} else if (sampleBits == 24) {
format = 3;
} else if (sampleBits == 32) {
format = 4; // This is float
} else {
qDebug() << "RemoteTCPInputTCPHandler::spyServerSetIQFormat: Unsupported value" << sampleBits;
format = 1;
}
spyServerSet(SpyServerProtocol::setIQFormat, format);
}
void RemoteTCPInputTCPHandler::spyServerSetStreamIQ()
{
spyServerSetIQFormat(m_settings.m_sampleBits);
spyServerSet(SpyServerProtocol::setStreamingMode, 1); // Stream IQ only
spyServerSet(SpyServerProtocol::setStreamingEnabled, 1); // Enable streaming
}
void RemoteTCPInputTCPHandler::applySettings(const RemoteTCPInputSettings& settings, const QList<QString>& settingsKeys, bool force)
{
qDebug() << "RemoteTCPInputTCPHandler::applySettings: "
<< "force: " << force
<< settings.getDebugString(settingsKeys, force);
QMutexLocker mutexLocker(&m_mutex);
if (m_spyServer)
{
if (settingsKeys.contains("centerFrequency") || force) {
spyServerSet(SpyServerProtocol::setCenterFrequency, settings.m_centerFrequency);
}
if ((settings.m_channelSampleRate != m_settings.m_channelSampleRate) || force)
{
// Resize FIFO to give us 1 second
if ((settingsKeys.contains("channelSampleRate") || force) && (settings.m_channelSampleRate > (qint32)m_sampleFifo->size()))
{
qDebug() << "RemoteTCPInputTCPHandler::applySettings: Resizing sample FIFO from " << m_sampleFifo->size() << "to" << settings.m_channelSampleRate;
m_sampleFifo->setSize(settings.m_channelSampleRate);
delete[] m_tcpBuf;
m_tcpBuf = new char[m_sampleFifo->size()*2*4];
m_fillBuffer = true; // So we reprime FIFO
}
// Protocol only seems to allow changing decimation
//spyServerSet(SpyServerProtocol::???, settings.m_channelSampleRate);
clearBuffer();
}
if (settingsKeys.contains("sampleBits") || force)
{
spyServerSetIQFormat(settings.m_sampleBits);
clearBuffer();
}
if (settingsKeys.contains("log2Decim") || force)
{
spyServerSet(SpyServerProtocol::setIQDecimation, settings.m_log2Decim);
clearBuffer();
}
if (settingsKeys.contains("gain[0]") || force)
{
spyServerSet(SpyServerProtocol::setGain, settings.m_gain[0] / 10); // Convert 10ths dB to index
}
}
else
{
if (settingsKeys.contains("centerFrequency") || force) {
setCenterFrequency(settings.m_centerFrequency);
}
if (settingsKeys.contains("loPpmCorrection") || force) {
setFreqCorrection(settings.m_loPpmCorrection);
}
if (settingsKeys.contains("dcBlock") || force) {
if (m_sdra) {
setDCOffsetRemoval(settings.m_dcBlock);
}
}
if (settingsKeys.contains("iqCorrection") || force) {
if (m_sdra) {
setIQCorrection(settings.m_iqCorrection);
}
}
if (settingsKeys.contains("biasTee") || force) {
setBiasTee(settings.m_biasTee);
}
if (settingsKeys.contains("directSampling") || force) {
setDirectSampling(settings.m_directSampling);
}
if (settingsKeys.contains("log2Decim") || force) {
if (m_sdra) {
setDecimation(settings.m_log2Decim);
}
}
if (settingsKeys.contains("devSampleRate") || force) {
setSampleRate(settings.m_devSampleRate);
}
if (settingsKeys.contains("agc") || force) {
setAGC(settings.m_agc);
}
if (force) {
setTunerAGC(1); // The SDRangel RTLSDR driver always has tuner gain as manual
}
if (settingsKeys.contains("gain[0]") || force) {
setTunerGain(settings.m_gain[0]);
}
for (int i = 1; i < 3; i++)
{
if (settingsKeys.contains(QString("gain[%1]").arg(i)) || force) {
setIFGain(i, settings.m_gain[i]);
}
}
if (settingsKeys.contains("rfBW") || force) {
setBandwidth(settings.m_rfBW);
}
if (settingsKeys.contains("inputFrequencyOffset") || force) {
if (m_sdra) {
setChannelFreqOffset(settings.m_inputFrequencyOffset);
}
}
if (settingsKeys.contains("channelGain") || force) {
if (m_sdra) {
setChannelGain(settings.m_channelGain);
}
}
if ((settings.m_channelSampleRate != m_settings.m_channelSampleRate) || force)
{
// Resize FIFO to give us 1 second
if ((settingsKeys.contains("channelSampleRate") || force) && (settings.m_channelSampleRate > (qint32)m_sampleFifo->size()))
{
qDebug() << "RemoteTCPInputTCPHandler::applySettings: Resizing sample FIFO from " << m_sampleFifo->size() << "to" << settings.m_channelSampleRate;
m_sampleFifo->setSize(settings.m_channelSampleRate);
delete[] m_tcpBuf;
m_tcpBuf = new char[m_sampleFifo->size()*2*4];
m_fillBuffer = true; // So we reprime FIFO
}
if (m_sdra) {
setChannelSampleRate(settings.m_channelSampleRate);
}
clearBuffer();
}
if (settingsKeys.contains("sampleBits") || force)
{
if (m_sdra) {
setSampleBitDepth(settings.m_sampleBits);
}
clearBuffer();
}
}
// Don't use force, as disconnect can cause rtl_tcp to quit
if (settingsKeys.contains("dataAddress") || settingsKeys.contains("dataPort") || (m_dataSocket == nullptr))
{
disconnectFromHost();
connectToHost(settings.m_dataAddress, settings.m_dataPort);
}
if (force) {
m_settings = settings;
} else {
m_settings.applySettings(settingsKeys, settings);
}
}
void RemoteTCPInputTCPHandler::connected()
{
QMutexLocker mutexLocker(&m_mutex);
qDebug() << "RemoteTCPInputTCPHandler::connected";
if (m_messageQueueToGUI)
{
MsgReportConnection *msg = MsgReportConnection::create(true);
m_messageQueueToGUI->push(msg);
}
m_spyServer = m_settings.m_protocol == "Spy Server";
m_state = HEADER;
m_sdra = false;
if (m_spyServer) {
spyServerConnect();
}
}
void RemoteTCPInputTCPHandler::reconnect()
{
QMutexLocker mutexLocker(&m_mutex);
if (!m_dataSocket) {
connectToHost(m_settings.m_dataAddress, m_settings.m_dataPort);
}
}
void RemoteTCPInputTCPHandler::disconnected()
{
QMutexLocker mutexLocker(&m_mutex);
qDebug() << "RemoteTCPInputTCPHandler::disconnected";
cleanup();
if (m_messageQueueToGUI)
{
MsgReportConnection *msg = MsgReportConnection::create(false);
m_messageQueueToGUI->push(msg);
}
// Try to reconnect
m_reconnectTimer.start(500);
}
void RemoteTCPInputTCPHandler::errorOccurred(QAbstractSocket::SocketError socketError)
{
qDebug() << "RemoteTCPInputTCPHandler::errorOccurred: " << socketError;
cleanup();
if (m_messageQueueToGUI)
{
MsgReportConnection *msg = MsgReportConnection::create(false);
m_messageQueueToGUI->push(msg);
}
// Try to reconnect
m_reconnectTimer.start(500);
}
void RemoteTCPInputTCPHandler::dataReadyRead()
{
QMutexLocker mutexLocker(&m_mutex);
if (!m_readMetaData && !m_spyServer)
{
processMetaData();
}
else if (!m_readMetaData && m_spyServer)
{
processSpyServerMetaData();
}
}
void RemoteTCPInputTCPHandler::processMetaData()
{
quint8 metaData[RemoteTCPProtocol::m_sdraMetaDataSize];
if (m_dataSocket->bytesAvailable() >= (qint64)sizeof(metaData))
{
qint64 bytesRead = m_dataSocket->read((char *)&metaData[0], 4);
if (bytesRead == 4)
{
// Read first 4 bytes which indicate which protocol is in use
// RTL0 or SDRA
char protochars[5];
memcpy(protochars, metaData, 4);
protochars[4] = '\0';
QString protocol(protochars);
if (protocol == "RTL0")
{
m_sdra = false;
m_spyServer = false;
bytesRead = m_dataSocket->read((char *)&metaData[4], RemoteTCPProtocol::m_rtl0MetaDataSize-4);
m_device = (RemoteTCPProtocol::Device)RemoteTCPProtocol::extractUInt32(&metaData[4]);
if (m_messageQueueToGUI) {
m_messageQueueToGUI->push(MsgReportRemoteDevice::create(m_device, protocol));
}
if (m_settings.m_sampleBits != 8)
{
RemoteTCPInputSettings& settings = m_settings;
settings.m_sampleBits = 8;
QList<QString> settingsKeys{"sampleBits"};
if (m_messageQueueToInput) {
m_messageQueueToInput->push(RemoteTCPInput::MsgConfigureRemoteTCPInput::create(settings, settingsKeys));
}
if (m_messageQueueToGUI) {
m_messageQueueToGUI->push(RemoteTCPInput::MsgConfigureRemoteTCPInput::create(settings, settingsKeys));
}
}
}
else if (protocol == "SDRA")
{
m_sdra = true;
m_spyServer = false;
bytesRead = m_dataSocket->read((char *)&metaData[4], RemoteTCPProtocol::m_sdraMetaDataSize-4);
m_device = (RemoteTCPProtocol::Device)RemoteTCPProtocol::extractUInt32(&metaData[4]);
if (m_messageQueueToGUI) {
m_messageQueueToGUI->push(MsgReportRemoteDevice::create(m_device, protocol));
}
if (!m_settings.m_overrideRemoteSettings)
{
// Update local settings to match remote
RemoteTCPInputSettings& settings = m_settings;
QList<QString> settingsKeys;
settings.m_centerFrequency = RemoteTCPProtocol::extractUInt64(&metaData[8]);
settingsKeys.append("centerFrequency");
settings.m_loPpmCorrection = RemoteTCPProtocol::extractUInt32(&metaData[16]);
settingsKeys.append("loPpmCorrection");
quint32 flags = RemoteTCPProtocol::extractUInt32(&metaData[20]);
settings.m_biasTee = flags & 1;
settingsKeys.append("biasTee");
settings.m_directSampling = (flags >> 1) & 1;
settingsKeys.append("directSampling");
settings.m_agc = (flags >> 2) & 1;
settingsKeys.append("agc");
settings.m_dcBlock = (flags >> 3) & 1;
settingsKeys.append("dcBlock");
settings.m_iqCorrection = (flags >> 4) & 1;
settingsKeys.append("iqCorrection");
settings.m_devSampleRate = RemoteTCPProtocol::extractUInt32(&metaData[24]);
settingsKeys.append("devSampleRate");
settings.m_log2Decim = RemoteTCPProtocol::extractUInt32(&metaData[28]);
settingsKeys.append("log2Decim");
settings.m_gain[0] = RemoteTCPProtocol::extractInt16(&metaData[32]);
settings.m_gain[1] = RemoteTCPProtocol::extractInt16(&metaData[34]);
settings.m_gain[2] = RemoteTCPProtocol::extractInt16(&metaData[36]);
settingsKeys.append("gain[0]");
settingsKeys.append("gain[1]");
settingsKeys.append("gain[2]");
settings.m_rfBW = RemoteTCPProtocol::extractUInt32(&metaData[40]);
settingsKeys.append("rfBW");
settings.m_inputFrequencyOffset = RemoteTCPProtocol::extractUInt32(&metaData[44]);
settingsKeys.append("inputFrequencyOffset");
settings.m_channelGain = RemoteTCPProtocol::extractUInt32(&metaData[48]);
settingsKeys.append("channelGain");
settings.m_channelSampleRate = RemoteTCPProtocol::extractUInt32(&metaData[52]);
settingsKeys.append("channelSampleRate");
settings.m_sampleBits = RemoteTCPProtocol::extractUInt32(&metaData[56]);
settingsKeys.append("sampleBits");
if (settings.m_channelSampleRate != (settings.m_devSampleRate >> settings.m_log2Decim))
{
settings.m_channelDecimation = true;
settingsKeys.append("channelDecimation");
}
if (m_messageQueueToInput) {
m_messageQueueToInput->push(RemoteTCPInput::MsgConfigureRemoteTCPInput::create(settings, settingsKeys));
}
if (m_messageQueueToGUI) {
m_messageQueueToGUI->push(RemoteTCPInput::MsgConfigureRemoteTCPInput::create(settings, settingsKeys));
}
}
}
else
{
qDebug() << "RemoteTCPInputTCPHandler::dataReadyRead: Unknown protocol: " << protocol;
}
if (m_settings.m_overrideRemoteSettings)
{
// Force settings to be sent to remote device (this needs to be after m_sdra is determined above)
applySettings(m_settings, QList<QString>(), true);
}
}
m_readMetaData = true;
}
}
void RemoteTCPInputTCPHandler::processSpyServerMetaData()
{
bool done = false;
while (!done)
{
if (m_state == HEADER)
{
if (m_dataSocket->bytesAvailable() >= (qint64)sizeof(SpyServerProtocol::Header))
{
qint64 bytesRead = m_dataSocket->read((char *)&m_spyServerHeader, sizeof(SpyServerProtocol::Header));
if (bytesRead == sizeof(SpyServerProtocol::Header)) {
m_state = DATA;
} else {
qDebug() << "RemoteTCPInputTCPHandler::processSpyServerMetaData: Failed to read:" << bytesRead << "/" << sizeof(SpyServerProtocol::Header);
}
}
else
{
done = true;
}
}
else if (m_state == DATA)
{
if (m_dataSocket->bytesAvailable() >= m_spyServerHeader.m_size)
{
qint64 bytesRead = m_dataSocket->read(&m_tcpBuf[0], m_spyServerHeader.m_size);
if (bytesRead == m_spyServerHeader.m_size)
{
if (m_spyServerHeader.m_message == SpyServerProtocol::DeviceMessage)
{
processSpyServerDevice((SpyServerProtocol::Device *) &m_tcpBuf[0]);
m_state = HEADER;
}
else if (m_spyServerHeader.m_message == SpyServerProtocol::StateMessage)
{
// This call can result in applySettings() calling clearBuffer() then processSpyServerData()
processSpyServerState((SpyServerProtocol::State *) &m_tcpBuf[0], true);
spyServerSetStreamIQ();
m_state = HEADER;
m_readMetaData = true;
done = true;
}
else
{
qDebug() << "RemoteTCPInputTCPHandler::processSpyServerMetaData: Unexpected message type" << m_spyServerHeader.m_message;
m_state = HEADER;
}
}
else
{
qDebug() << "RemoteTCPInputTCPHandler::processSpyServerMetaData: Failed to read:" << bytesRead << "/" << m_spyServerHeader.m_size;
}
}
else
{
done = true;
}
}
}
}
void RemoteTCPInputTCPHandler::processSpyServerDevice(const SpyServerProtocol::Device* ssDevice)
{
qDebug() << "RemoteTCPInputTCPHandler::processSpyServerDevice:"
<< "device:" << ssDevice->m_device
<< "serial:" << ssDevice->m_serial
<< "sampleRate:" << ssDevice->m_sampleRate
<< "decimationStages:" << ssDevice->m_decimationStages
<< "maxGainIndex:" << ssDevice->m_maxGainIndex
<< "minFrequency:" << ssDevice->m_minFrequency
<< "maxFrequency:" << ssDevice->m_maxFrequency
<< "sampleBits:" << ssDevice->m_sampleBits
<< "minDecimation:" << ssDevice->m_minDecimation;
switch (ssDevice->m_device)
{
case 1:
m_device = RemoteTCPProtocol::AIRSPY;
break;
case 2:
m_device = RemoteTCPProtocol::AIRSPY_HF;
break;
case 3:
m_device = ssDevice->m_maxGainIndex == 14
? RemoteTCPProtocol::RTLSDR_E4000
: RemoteTCPProtocol::RTLSDR_R820T;
break;
default:
m_device = RemoteTCPProtocol::UNKNOWN;
break;
}
if (m_messageQueueToGUI) {
m_messageQueueToGUI->push(MsgReportRemoteDevice::create(m_device, "Spy Server", ssDevice->m_maxGainIndex));
}
RemoteTCPInputSettings& settings = m_settings;
QList<QString> settingsKeys{};
// We can't change sample rate, so always have to update local setting to match
m_settings.m_devSampleRate = settings.m_devSampleRate = ssDevice->m_sampleRate;
settingsKeys.append("devSampleRate");
// Make sure decimation setting is at least the minimum
if (!m_settings.m_overrideRemoteSettings || (settings.m_log2Decim < (int) ssDevice->m_minDecimation))
{
m_settings.m_log2Decim = settings.m_log2Decim = ssDevice->m_minDecimation;
settingsKeys.append("log2Decim");
}
if (m_messageQueueToInput) {
m_messageQueueToInput->push(RemoteTCPInput::MsgConfigureRemoteTCPInput::create(settings, settingsKeys));
}
if (m_messageQueueToGUI) {
m_messageQueueToGUI->push(RemoteTCPInput::MsgConfigureRemoteTCPInput::create(settings, settingsKeys));
}
}
void RemoteTCPInputTCPHandler::processSpyServerState(const SpyServerProtocol::State* ssState, bool initial)
{
qDebug() << "RemoteTCPInputTCPHandler::processSpyServerState: "
<< "initial:" << initial
<< "controllable:" << ssState->m_controllable
<< "gain:" << ssState->m_gain
<< "deviceCenterFrequency:" << ssState->m_deviceCenterFrequency
<< "iqCenterFrequency:" << ssState->m_iqCenterFrequency;
if (initial && ssState->m_controllable && m_settings.m_overrideRemoteSettings)
{
// Force client settings to be sent to server
applySettings(m_settings, QList<QString>(), true);
}
else
{
// Update client settings with that from server
RemoteTCPInputSettings& settings = m_settings;
QList<QString> settingsKeys;
if (m_settings.m_centerFrequency != ssState->m_iqCenterFrequency)
{
settings.m_centerFrequency = ssState->m_iqCenterFrequency;
settingsKeys.append("centerFrequency");
}
if (m_settings.m_gain[0] != (qint32) ssState->m_gain)
{
settings.m_gain[0] = ssState->m_gain;
settingsKeys.append("gain[0]");
}
if (settingsKeys.size() > 0)
{
if (m_messageQueueToInput) {
m_messageQueueToInput->push(RemoteTCPInput::MsgConfigureRemoteTCPInput::create(settings, settingsKeys));
}
if (m_messageQueueToGUI) {
m_messageQueueToGUI->push(RemoteTCPInput::MsgConfigureRemoteTCPInput::create(settings, settingsKeys));
}
}
}
}
void RemoteTCPInputTCPHandler::processSpyServerData(int requiredBytes, bool clear)
{
if (!m_readMetaData) {
return;
}
bool done = false;
while (!done)
{
if (m_state == HEADER)
{
if (m_dataSocket->bytesAvailable() >= (qint64) sizeof(SpyServerProtocol::Header))
{
qint64 bytesRead = m_dataSocket->read((char *) &m_spyServerHeader, sizeof(SpyServerProtocol::Header));
if (bytesRead == sizeof(SpyServerProtocol::Header)) {
m_state = DATA;
} else {
qDebug() << "RemoteTCPInputTCPHandler::processSpyServerData: Failed to read:" << bytesRead << "/" << sizeof(SpyServerProtocol::Header);
}
}
else
{
done = true;
}
}
else if (m_state == DATA)
{
int bytes;
if ((m_spyServerHeader.m_message >= SpyServerProtocol::IQ8MMessage) && (m_spyServerHeader.m_message <= SpyServerProtocol::IQ32Message)) {
bytes = std::min(requiredBytes, (int) m_spyServerHeader.m_size);
} else {
bytes = m_spyServerHeader.m_size;
}
if (m_dataSocket->bytesAvailable() >= bytes)
{
qint64 bytesRead = m_dataSocket->read(&m_tcpBuf[0], bytes);
if (bytesRead == bytes)
{
if ((m_spyServerHeader.m_message >= SpyServerProtocol::IQ8MMessage) && (m_spyServerHeader.m_message <= SpyServerProtocol::IQ32Message))
{
if (!clear)
{
const int bytesPerIQPair = 2 * m_settings.m_sampleBits / 8;
convert(bytesRead / bytesPerIQPair);
}
m_spyServerHeader.m_size -= bytesRead;
requiredBytes -= bytesRead;
if (m_spyServerHeader.m_size == 0) {
m_state = HEADER;
}
if (requiredBytes <= 0) {
done = true;
}
}
else if (m_spyServerHeader.m_message == SpyServerProtocol::StateMessage)
{
processSpyServerState((SpyServerProtocol::State *) &m_tcpBuf[0], false);
m_state = HEADER;
}
else
{
qDebug() << "RemoteTCPInputTCPHandler::processSpyServerData: Skipping unsupported message";
m_state = HEADER;
}
}
else
{
qDebug() << "RemoteTCPInputTCPHandler::processSpyServerData: Failed to read:" << bytesRead << "/" << bytes;
}
}
else
{
done = true;
}
}
}
}
// QTimer::timeout isn't guarenteed to be called on every timeout, so we need to look at the system clock
void RemoteTCPInputTCPHandler::processData()
{
QMutexLocker mutexLocker(&m_mutex);
if (m_dataSocket && (m_dataSocket->state() == QAbstractSocket::ConnectedState))
{
int sampleRate = m_settings.m_channelSampleRate;
int bytesPerIQPair = 2 * m_settings.m_sampleBits / 8;
int bytesPerSecond = sampleRate * bytesPerIQPair;
if (m_dataSocket->bytesAvailable() < (0.1f * m_settings.m_preFill * bytesPerSecond))
{
qDebug() << "RemoteTCPInputTCPHandler::processData: Buffering - bytesAvailable:" << m_dataSocket->bytesAvailable();
m_fillBuffer = true;
}
// Report buffer usage
// QTcpSockets buffer size should be unlimited - we pretend here it's twice as big as the point we start reading from it
if (m_messageQueueToGUI)
{
qint64 size = std::max(m_dataSocket->bytesAvailable(), (qint64)(m_settings.m_preFill * bytesPerSecond));
RemoteTCPInput::MsgReportTCPBuffer *report = RemoteTCPInput::MsgReportTCPBuffer::create(
m_dataSocket->bytesAvailable(), size, m_dataSocket->bytesAvailable() / (float)bytesPerSecond,
m_sampleFifo->fill(), m_sampleFifo->size(), m_sampleFifo->fill() / (float)bytesPerSecond
);
m_messageQueueToGUI->push(report);
}
float factor = 0.0f;
// Prime buffer, before we start reading
if (m_fillBuffer)
{
if (m_dataSocket->bytesAvailable() >= m_settings.m_preFill * bytesPerSecond)
{
qDebug() << "RemoteTCPInputTCPHandler::processData: Buffer primed - bytesAvailable:" << m_dataSocket->bytesAvailable();
m_fillBuffer = false;
m_prevDateTime = QDateTime::currentDateTime();
factor = 1.0f / 4.0f; // If this is too high, samples can just be dropped downstream
}
}
else
{
QDateTime currentDateTime = QDateTime::currentDateTime();
factor = m_prevDateTime.msecsTo(currentDateTime) / 1000.0f;
m_prevDateTime = currentDateTime;
}
unsigned int remaining = m_sampleFifo->size() - m_sampleFifo->fill();
int requiredSamples = (int)std::min((unsigned int)(factor * sampleRate), remaining);
if (!m_fillBuffer)
{
if (!m_spyServer)
{
// rtl_tcp/SDRA stream is just IQ samples
if (m_dataSocket->bytesAvailable() >= requiredSamples*bytesPerIQPair)
{
m_dataSocket->read(&m_tcpBuf[0], requiredSamples*bytesPerIQPair);
convert(requiredSamples);
}
}
else
{
// SpyServer stream is packetized, into a header and body, with multiple packet types
int requiredBytes = requiredSamples*bytesPerIQPair;
processSpyServerData(requiredBytes, false);
}
}
}
}
// The following code assumes host is little endian
void RemoteTCPInputTCPHandler::convert(int nbSamples)
{
if (nbSamples > (int) m_converterBufferNbSamples)
{
if (m_converterBuffer) {
delete[] m_converterBuffer;
}
m_converterBuffer = new int32_t[nbSamples*2];
}
if ((m_settings.m_sampleBits == 32) && (SDR_RX_SAMP_SZ == 24) && !m_spyServer)
{
m_sampleFifo->write(reinterpret_cast<quint8*>(m_tcpBuf), nbSamples*sizeof(Sample));
}
else if ((m_settings.m_sampleBits == 32) && (SDR_RX_SAMP_SZ == 24) && m_spyServer)
{
float *in = (float *)m_tcpBuf;
qint32 *out = (qint32 *)m_converterBuffer;
for (int is = 0; is < nbSamples*2; is++) {
out[is] = (qint32)(in[is] * SDR_RX_SCALEF);
}
m_sampleFifo->write(reinterpret_cast<quint8*>(out), nbSamples*sizeof(Sample));
}
else if ((m_settings.m_sampleBits == 32) && (SDR_RX_SAMP_SZ == 16) && m_spyServer)
{
float *in = (float *)m_tcpBuf;
qint16 *out = (qint16 *)m_converterBuffer;
for (int is = 0; is < nbSamples*2; is++) {
out[is] = (qint16)(in[is] * SDR_RX_SCALEF);
}
m_sampleFifo->write(reinterpret_cast<quint8*>(out), nbSamples*sizeof(Sample));
}
else if ((m_settings.m_sampleBits == 8) && (SDR_RX_SAMP_SZ == 16))
{
quint8 *in = (quint8 *)m_tcpBuf;
qint16 *out = (qint16 *)m_converterBuffer;
for (int is = 0; is < nbSamples*2; is++) {
out[is] = (((qint16)in[is]) - 128) << 8;
}
m_sampleFifo->write(reinterpret_cast<quint8*>(out), nbSamples*sizeof(Sample));
}
else if ((m_settings.m_sampleBits == 8) && (SDR_RX_SAMP_SZ == 24))
{
quint8 *in = (quint8 *)m_tcpBuf;
qint32 *out = (qint32 *)m_converterBuffer;
for (int is = 0; is < nbSamples*2; is++) {
out[is] = (((qint32)in[is]) - 128) << 16;
}
m_sampleFifo->write(reinterpret_cast<quint8*>(out), nbSamples*sizeof(Sample));
}
else if ((m_settings.m_sampleBits == 24) && (SDR_RX_SAMP_SZ == 24))
{
quint8 *in = (quint8 *)m_tcpBuf;
qint32 *out = (qint32 *)m_converterBuffer;
for (int is = 0; is < nbSamples*2; is++) {
out[is] = (((in[3*is+2] << 16) | (in[3*is+1] << 8) | in[3*is]) << 8) >> 8;
}
m_sampleFifo->write(reinterpret_cast<quint8*>(out), nbSamples*sizeof(Sample));
}
else if ((m_settings.m_sampleBits == 24) && (SDR_RX_SAMP_SZ == 16))
{
quint8 *in = (quint8 *)m_tcpBuf;
qint16 *out = (qint16 *)m_converterBuffer;
for (int is = 0; is < nbSamples*2; is++) {
out[is] = (in[3*is+2] << 8) | in[3*is+1];
}
m_sampleFifo->write(reinterpret_cast<quint8*>(out), nbSamples*sizeof(Sample));
}
else if ((m_settings.m_sampleBits == 16) && (SDR_RX_SAMP_SZ == 24))
{
qint16 *in = (qint16 *)m_tcpBuf;
qint32 *out = (qint32 *)m_converterBuffer;
for (int is = 0; is < nbSamples*2; is++) {
out[is] = in[is] << 8;
}
m_sampleFifo->write(reinterpret_cast<quint8*>(out), nbSamples*sizeof(Sample));
}
else if ((m_settings.m_sampleBits == 32) && (SDR_RX_SAMP_SZ == 16))
{
qint32 *in = (qint32 *)m_tcpBuf;
qint16 *out = (qint16 *)m_converterBuffer;
for (int is = 0; is < nbSamples*2; is++) {
out[is] = in[is] >> 8;
}
m_sampleFifo->write(reinterpret_cast<quint8*>(out), nbSamples*sizeof(Sample));
}
else // invalid size
{
qWarning("RemoteTCPInputTCPHandler::convert: unexpected sample size in stream: %d bits", (int) m_settings.m_sampleBits);
}
}
void RemoteTCPInputTCPHandler::handleInputMessages()
{
Message* message;
while ((message = m_inputMessageQueue.pop()) != 0)
{
if (handleMessage(*message)) {
delete message;
}
}
}
bool RemoteTCPInputTCPHandler::handleMessage(const Message& cmd)
{
if (MsgConfigureTcpHandler::match(cmd))
{
qDebug() << "RemoteTCPInputTCPHandler::handleMessage: MsgConfigureTcpHandler";
MsgConfigureTcpHandler& notif = (MsgConfigureTcpHandler&) cmd;
applySettings(notif.getSettings(), notif.getSettingsKeys(), notif.getForce());
return true;
}
else
{
return false;
}
}
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